Air compressor or pump.



W. H. TEW.

PRESSOR GR FUMP.

nos IILED AUG, w07.

TVI

AIB. G0

APPLIC EATENTED FER 18, 1908. W. H. TEWa AR OMPRESSR 0R UM?.

APPLICAMON NLRB AUG. 1e, 1907.

No. 879,213. PATEN'TED PEB. 18, 1908. W. H. TEW, AIR OMPRESSOR GR PUMP.

APPLIGATION FILED AUG. 1B, 1907.

3 SHEETS-SHEET 3,

AER GWPRESSR OR PUM-P.

Specification of Letters Patent.

Paifented Feb. 18, 1908.

ppliczilzion iiled August 1G. 1907. Serial lilo. 388.842.

finoilnnd, (iA/'hosi poifoliiw siddi'ess is 5:3 lliailirloo strooi., Glasgow, in *du* county of lifiniu'li, Scollnidg) hnvo invcnlml corta-in mw und inulul li'nlnoicnufnl/s in Air Coin iirissois or Pumps; and l do horvhy declare tho following to ho i lull, olezu, and @niet dcscvliption of this ini'ontion, suc-h, :is will miahl@ others Skilled in tho mi, to which it nppvitnins lio nulli@ md use die sinne.

This invention i'oliitcs to improvements in ziii' noinprissorn or piling ol" tho kind in which :in inner drinn and an nul-i.' cylinder in such n, nummer tlm@ their are parallel hut arranged -@coenlriczilly5 the ono in relaion to the othvr so that th@ inner drum and thv outer casing forni n, crescent' Shaped ifhuniher, rho said oliaiiilim boing divided by radial wines lierfiiniiier desolilmd. i

Tho pi'isini invention has 'for iii-5 object to increase i'ho vllioioncy of compressori; huilt on the :ihoi'e lines without increasing their url-:fico olt rho oulir mining; l'i'il'hn View to overwinning mus (hills/nity or dlimcin nuinhvi ol iaiiiips (hwreiiniller ciiliml packing; Strips) M0, uccm'dingg io ihis iiwvntion, plmwod'iii/` ihzii; whon tho 'drinn in dei' Strip :in :iii: Vii'hi. inint; oi' Contact is loinwd 'zindzill siii i i'ron'ljii. thodiwciion ol' nlowininlii) oi il," 'poini oi" posiiion olzonliulzt, a. ol alle packing Strip, is diiwihm'god through the valve oi' vidrios providi-fd lor fluit purnor.

The said. packing Ships nrc nornmlly :allowed in lo mitond n siigjli dinmico intoihi ciw-scout i l l i l Slizipid chmnhvr, und are hold in ihzil' position hy invulv olt springs, or oi'lui\vi:-i until i'oijovd ou'lwin'ds hy the inownunt of ih@ drum.

l '.llw inwniion l'urhui uonsisis in lh@ coinhinsizion 21nd :u'i'iingjoinvnl oi parisA7 :1nd im luresiind dvtuils of construction, lwiiinziltor dvscrrihcd and nioriy imriicuiurly poiniod outy in tho fippundvd uliiins.

ln tho nocouiuuiying di'avfingu,--ni lh@ several liguios ol which tho iquii/nlwnty part-s f im* indicated hy siluilnr iol'orence syniholsf Figure l: is :i :sectional vivw of in apparatus construoted :M cording to this invcntion; Fig. is a sectional (devotion, luiken ou the iin@ AME, Fig. l, looking; in th@ direction of the arrow, and Figs.

crank o1' Qccantrii'z. pins fluriiiiuiftm doM scribed, ou :in enlarged scale.

Referring to' tho drawing-s, i. represents the Statioimry outer casing or drum :1nd 2 the innfr drum. This innoi drum 2 is mounted onoi surrounds rhoy ocveutric noi'- ion 3 of tho shaft #l in sugyh :L umnnm thai: the ofzition oi Shaft. il iuipiirts n rolling mol'iion tothe innii drum L? und'nn over :Ldvnuving point or lin@ in the pii'iphiry ol' l'ho innii drum 2 nniiuiniincd in i'o'iltmwt with ihv in,- ne \fiin liival nuria-c@ of tho oulvi casing i whili#` `ihn 'dimiwtriirally opposite point is hzil of gi'fabgnt doplh' oi tho i'r'osainl' rnii-[ipod chmnhei. y I

To innintninthc relativi" posilion of thc inner and outi-r drums f2 and if thoy :mf linlud togetluii, incl'oi'iibly at thro@ poilus, hjv \c- (centric ifrzinhpins :i fue showin 'sunk into the cover 6 of the ontw' vimini.; l.- llzwh ol these occifntric pins has mi opnniijig or port, 7 so placed und wronged ihn? hy tho niovv` input iinl'mrlid lotlwin i'roin the inner diui'n ilig opvnings or ports nro, nl, th'o coi-roel',

moment pliurid in cominunicn'bion or rogiS-- trillion with an oponing` oi' pori; 5% in the over .find l show' one oi thebetween t e outer face of the inner drum and to secure by Letters limitent is e discharge volvo or valves 1n said outer caserated by the movement thereof'.

located es shown and 'being arranged redially in the outer casing insure ntliorongh' Water cooling.

14 are psckirg strips formed of any snitable materiel, sind are mounted in the inner facei the outerl casing i.. These strips, es .hereinbefore ststed, are allowed .to project or extend e slight distnnce into 'the crescent shaped chamber es shown in the drawings and are held in vthat position by means ci' springsor the like. The inner drum 2, in the rolling' nlovement imparted to it by the eccentric shaft, forces these pecking strips in in outward direction relative to the center of the' op nistus, and the seid strips form the inner ieee of the outer casing en airtight Contact or joint when the point of contact isl :it one of the seid strips. l

Whitt l claim ss mv invention and desire 1. lin :in :nr compressor, the combination of s stationery outer casing, en inner drum linked thereto, radial venes operatively mounted in seit-louter casing and innerdrum,

ing, ineens for importing s rolling motion to the said innerdrnm, sind inlet valves connected to sind drum and adapted to he op- 2. In on nir compressor, the combination oi a stationery outer casing, sin inner drum, redini venes operatively mounted in sind in ner drum fend outer casing, Ineens ior imparting 's rolling motion to the said inner drum, a dischergevelve or valves in seid outer casing-eccentric or crank pins linking said inner drum end outer casing together to maintain them in their correct relative l positions, end ports in sind nins adopted to he put into registration with inlet ports in the outer casing by the' movement of the in: ner drum to vadmit atmospheric air to the compressor.

3. ln en sir compressor, the combination of a stationary outer casing, :in innerdrum linked thereto, radial venes operatively mounted in seid outer easing and inner drum, inlet and discharge valves, Ineens for im porting e rolling motion to said inner drum, end s pecking strip or strips adopted et certain times in 'the operation of the eppsratus to form on nir tight joint .et the point of contact of the ,inner drum and outer casing.

, in on nir compressor, the combination ot n stationary onter. casing, on inner drum 'linked thereto, rsdiel venes operatively mounted in saidonter casing sind inner drum, o dischnrge valve or valves in seid outer cesing, ineens tor ignpeitin a rolling motion to the seid inner drum, in et valves connected to seid drum and adapted to be o ereted by the movement thereof, and e paci ing strip or stripslsdopted zit certain times inthe o eration of the :apparatus to form en oir tig it joint at the point of .contact ofthe innerA drum and outer casing.

5. In on sir compressorfthe combination of a stationery outer casing, on inner drum, redini venes operatively mounted in said inner-drum and outer casing, ,leans for imparting s rolling motion to the, seid inner: drum, n discharge valve lor valves 1n said outer casing, eccentric or crank pinsl linking seid inner drum and outer casing together tomsint'ain them in their correct relative positions, ports iniseid ins adapted to be put into registration witi inlet ports in the outer casing by the movement of the inner drum to admit atmospheric air to the comi- `presser, and a pecking strip or strips adapted aat certa-in times in the operation of the ap- ;)psrzttus to form sin sir tight joint et the point of contact of the inner drum and the outer casing. Y

In testimony whereof I afin: my signetnre, in presence of' two Witnesses,

WILLIAM -HENRY 'DEVl/ lNitnesses:

R oBERT THOMSON, Trios. l GOMLEY. 

